Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE9DqChv3X4Z9Rl3l3gxw71aFzfSCrQbUefX6t7Ruz9glTmNu8xz4E+fk3A… (844 chars)"
  }
}